Testing of new controller started. Throughout the 2019 season, the collector worked with a new controller that worked very steadily. It is based on a new controller for home heating system with solid fuel boiler, storage tank, hot water boiler. Change widget settings when connected via browser from your phone or computer. The controller is now being tested pre-test software is here , wiring diagram, pcb.

In 2018, the collector is filled with water and the season started on April 12th. It was sunny spring from April 1, but I still did not believe that there would be no frost.
The season ended on September 26th. There are no temperature charts, I’ve eliminated everything, and I did not get ready to sort things out. I hope next year everything will start to work properly and on time.